383
FZUS51 KBOX 031703
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 PM EDT MON AUG 3 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-040600-
103 PM EDT MON AUG 3 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
SCA CONDITIONS PERSIST AS LOW PRESSURE BRINGS HEAVY RAIN AND GUSTY
WINDS THROUGH THIS EVENING. SEAS BUILD TO BETWEEN 5 AND 7 FEET
ACROSS THE OUTER WATERS AND WINDS INCREASE TO BETWEEN 15 AND 20 KT.
CHANCE FOR ISOLATED GALE CONDITIONS ACROSS BUZZARDS BAY AND
NANTUCKET SOUND MONDAY AFTERNOON. A FEW WEAK DISTURBANCES ARRIVE
NEXT WEEK BUT IMPACTS TO BOATERS SHOULD BE MINIMAL.
ANZ250-040600-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT AT 6 SECONDS AND E 2 FT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S 5 FT
AT 7 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN
THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING SW IN
THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 8 SECONDS
AND W 2 FT AT 4 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 3 SECONDS AND SE 2 FT AT 7 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 6 SECONDS AND SE 2 FT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-040600-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND E 1 FOOT
AT 9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING.
A CHANCE OF SHOWERS AND TSTMS IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
S 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 7 SECONDS.
WED
SW WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND SE 1 FOOT
AT 7 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 3 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-040600-
CAPE COD BAY-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 1 FOOT AT
9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT, SUBSIDING TO 2 TO
3 FT AFTER MIDNIGHT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE
2 FT AT 9 SECONDS, BECOMING W 2 FT AT 3 SECONDS AND SE 1 FOOT AT
8 SECONDS. PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN THE
EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT IN THE MORNING, THEN 1 FOOT OR LESS. WAVE DETAIL: W
1 FOOT AT 3 SECONDS AND SE 1 FOOT AT 9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: SW 1 FOOT AT 2 SECONDS AND SE 1 FOOT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 1 FOOT OR LESS.
WAVE DETAIL: SW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 3 SECONDS AND SE
2 FT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-040600-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND E 5 FT AT
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
W 15 TO 20 KT AFTER MIDNIGHT. SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT
AT 8 SECONDS AND E 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS. PATCHY
FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: W 5 FT AT 8 SECONDS AND SE 3 FT AT
9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW
4 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-040600-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
THIS AFTERNOON
S WINDS AROUND 25 KT WITH GUSTS UP TO 35 KT.
SEAS 6 TO 9 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS AND NE 1 FOOT AT
9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, BECOMING
W 15 TO 20 KT AFTER MIDNIGHT. SEAS 6 TO 9 FT, SUBSIDING TO 5 TO
7 FT AFTER MIDNIGHT. WAVE DETAIL: S 9 FT AT 9 SECONDS AND E
1 FOOT AT 9 SECONDS, BECOMING SW 7 FT AT 8 SECONDS AND E 1 FOOT
AT 8 SECONDS. SHOWERS LIKELY, MAINLY IN THE EVENING. PATCHY FOG
IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND E 1 FOOT AT
9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: S 4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-040600-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY EVENING
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 8 TO 9 FT. WAVE DETAIL: E 9 FT AT 9 SECONDS AND S 9 FT AT
9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 7 TO
9 FT, SUBSIDING TO 5 TO 7 FT AFTER MIDNIGHT. WAVE DETAIL: S 9 FT
AT 9 SECONDS AND NE 4 FT AT 9 SECONDS, BECOMING S 7 FT AT
8 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE EVENING. A
CHANCE OF SHOWERS IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND E 1 FOOT AT
9 SECONDS.
TUE NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND SE 2 FT AT 9 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E
1 FOOT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-040600-
NANTUCKET SOUND-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS AROUND 25 KT WITH GUSTS UP TO 35 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: SW 5 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT, BECOMING
W 15 TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
PATCHY FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND E
1 FOOT AT 8 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-040600-
VINEYARD SOUND-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND E 4 FT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 4 TO
6 FT. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND E 3 FT AT 9 SECONDS.
PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN THE EVENING
WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 3 FT AT 7 SECONDS AND SE 1 FOOT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE
1 FOOT AT 7 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-040600-
BUZZARDS BAY-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
THIS AFTERNOON
S WINDS 25 TO 30 KT WITH GUSTS UP TO 35 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 4 FT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
W 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 3 TO
5 FT. WAVE DETAIL: SW 5 FT AT 6 SECONDS AND SE 3 FT AT 9 SECONDS.
PATCHY FOG IN THE EVENING. A CHANCE OF SHOWERS IN THE EVENING
WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: S 2 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-040600-
RHODE ISLAND SOUND-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 8 FT. WAVE DETAIL: E 8 FT AT 9 SECONDS AND S 8 FT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 5 TO
8 FT, SUBSIDING TO 4 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: E 8 FT
AT 9 SECONDS AND SW 8 FT AT 9 SECONDS, BECOMING SW 6 FT AT
8 SECONDS AND E 1 FOOT AT 8 SECONDS. PATCHY FOG IN THE EVENING. A
CHANCE OF SHOWERS AND TSTMS IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND E 3 FT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
4 FT AT 7 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 4 FT.
WAVE DETAIL: SE 4 FT AT 7 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-040600-
BLOCK ISLAND SOUND-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY AFTERNOON
THIS AFTERNOON
SW WINDS AROUND 20 KT WITH GUSTS UP TO 30 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT AT 9 SECONDS AND E 5 FT AT
9 SECONDS. PATCHY FOG. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
VSBY 1 NM OR LESS.
TONIGHT
SW WINDS 15 TO 20 KT, BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 9 SECONDS AND E 5 FT AT 9 SECONDS. PATCHY FOG IN THE EVENING.
A CHANCE OF SHOWERS AND TSTMS IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
3 TO 5 FT. WAVE DETAIL: S 5 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT
AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS
AND E 1 FOOT AT 8 SECONDS.
WED
E WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 7 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 7 SECONDS AND E 1 FOOT AT 8 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-040600-
BOSTON HARBOR-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
WAVES AROUND 2 FT. PATCHY FOG. SHOWERS LIKELY WITH A CHANCE OF
TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
W 10 TO 15 KT AFTER MIDNIGHT. WAVES AROUND 2 FT. PATCHY FOG IN
THE EVENING. A CHANCE OF SHOWERS AND TSTMS IN THE EVENING WITH
VSBY 1 TO 3 NM.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
S WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
THU THROUGH FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-040600-
NARRAGANSETT BAY-
103 PM EDT MON AUG 3 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
WAVES 3 TO 5 FT. PATCHY FOG. SHOWERS WITH A SLIGHT CHANCE OF
TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT, BECOMING
NW 5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 4 FT. PATCHY FOG IN THE
EVENING. A CHANCE OF SHOWERS AND TSTMS IN THE EVENING WITH VSBY
1 TO 3 NM.
TUE
W WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. WAVES
2 TO 3 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT
AFTER MIDNIGHT. WAVES AROUND 2 FT.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES 2 TO 3 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-040600-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 PM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 35 KT.
SEAS 5 TO 7 FT. WAVE DETAIL: S 7 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 5 TO 7 FT. WAVE DETAIL: SW 7 FT
AT 8 SECONDS AND SE 4 FT AT 8 SECONDS. PATCHY FOG IN THE EVENING.
A CHANCE OF SHOWERS IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING.
SEAS 3 TO 5 FT. WAVE DETAIL: W 5 FT AT 7 SECONDS AND SE 2 FT AT
9 SECONDS.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 4 FT. WAVE
DETAIL: SW 4 FT AT 7 SECONDS AND SE 2 FT AT 10 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 6 SECONDS AND E
1 FOOT AT 9 SECONDS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-040600-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 PM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 7 TO 9 FT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND E 1 FOOT AT
8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 7 TO 9 FT, SUBSIDING TO 5 TO
8 FT AFTER MIDNIGHT. WAVE DETAIL: S 8 FT AT 8 SECONDS AND E
1 FOOT AT 8 SECONDS, BECOMING SW 8 FT AT 8 SECONDS AND E 1 FOOT
AT 8 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS. VSBY 1 TO 3 NM.
TUE
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT IN THE AFTERNOON. SEAS 5 TO 7 FT, SUBSIDING TO 4 TO
5 FT IN THE AFTERNOON. WAVE DETAIL: SW 6 FT AT 8 SECONDS AND E
1 FOOT AT 9 SECONDS, BECOMING SW 5 FT AT 8 SECONDS AND E 1 FOOT
AT 9 SECONDS.
TUE NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 11 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE
DETAIL: S 4 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND E
1 FOOT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-040600-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 PM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 9 TO 10 FT. WAVE DETAIL: S 9 FT AT 8 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT, BECOMING W 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 30 KT. SEAS 8 TO 10 FT, SUBSIDING TO 6 TO
9 FT AFTER MIDNIGHT. WAVE DETAIL: SW 9 FT AT 8 SECONDS AND E
1 FOOT AT 8 SECONDS, BECOMING SW 8 FT AT 8 SECONDS. PATCHY FOG. A
CHANCE OF SHOWERS AND TSTMS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT. VSBY 1 TO 3 NM.
TUE
NW WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
5 TO 7 FT, SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL:
S 6 FT AT 8 SECONDS AND E 1 FOOT AT 12 SECONDS, BECOMING S 5 FT
AT 8 SECONDS AND E 1 FOOT AT 9 SECONDS.
TUE NIGHT
S WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND E 1 FOOT AT 9 SECONDS.
WED
S WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE DETAIL: S
5 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-040600-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 PM EDT MON AUG 3 2026
THIS AFTERNOON
S WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT.
SEAS 9 TO 11 FT. WAVE DETAIL: E 11 FT AT 9 SECONDS AND S 10 FT AT
9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 20 TO 25 KT WITH GUSTS UP TO 30 KT, BECOMING
NW 10 TO 15 KT WITH GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 8 TO
10 FT, SUBSIDING TO 6 TO 8 FT AFTER MIDNIGHT. WAVE DETAIL: S 9 FT
AT 8 SECONDS AND NE 1 FOOT AT 9 SECONDS, BECOMING S 8 FT AT
8 SECONDS AND E 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS. PATCHY
FOG IN THE EVENING WITH VSBY 1 TO 3 NM.
TUE
N WINDS 5 TO 10 KT, BECOMING NE IN THE AFTERNOON. SEAS
4 TO 6 FT. WAVE DETAIL: S 6 FT AT 8 SECONDS AND NE 1 FOOT AT
10 SECONDS.
TUE NIGHT
SE WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S
4 FT AT 7 SECONDS AND SE 2 FT AT 11 SECONDS.
WED AND WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: S 5 FT AT 7 SECONDS AND E 1 FOOT AT 10 SECONDS.
THU THROUGH FRI NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S 5 FT AT 7 SECONDS AND SE
2 FT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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